Products > Climbing-Equipment > Extension Ladders > 3200K Series > 3220K 20ft Type III Aluminum D-Rung Extension Ladder > 3220K

3220K Extension Ladders - Keller US
3220K Extension Ladders - Keller US


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3220K 20ft Type III Aluminum D-Rung Extension Ladder


SizeStyleMax. Safe Working HeightReach HeightLoad Capacity
20ftMulti Section17ft19ft200lb Load Capacity Household Use

The 3220K Aluminum 20ft Extension Ladder is lightweight yet has a duty rating of 200 pounds. The D rung steps are slip resistant. Spring-loaded locks operate smoothly for easy operation. Pivoting shoes with slip-resistant foot pads. Mar-resistant end caps help protect the surface the ladder is leaning against. Exclusive 3-piece rung-to-rail connection means twist-proof performance every time. NOTE: Image displayed is 3228K 28ft Type III Aluminum D-Rung Extension Ladder


  • Exclusive 3-piece rung-to-rail connection means twist-proof performance
  • 1-1/2in slip-resistant D-rung steps
  • Durable extruded rung locks are spring loaded to operate smoothly
  • Mar-resistant end caps
  • Smooth operating pulley with polypropylene rope
  • Modified I-beam side rails to optimize strength and weight
  • Pivoting shoe with slip-resistant pad


FeatureSize / Details
Max. Safe Working Height17ft
Max. Open Extended Length17ft
StyleMulti Section
Load Capacity200lb Load Capacity Household Use
Duty RatingType III Duty Rating
Approx. Cu. Ft. Per Unit6.6
Approx. Product Weight (lb)22
Approx. Shipping Weight (lb)22
Base Width16-1/8in
CertificationsANSI A14.2 (2007), OSHA
Flange Dimension15/16in
Max. Load200lb
Number of Sections2
Reach Height19ft
Section x Rungs2 x 10
Rails Dimension2-3/4in
Rung Dimension1-5/8in
Rung TypeD-Rung

Package Contents

Part NumberQtyDescription



Additional 3200K Series Models

Model No.SizeMax. Safe Working HeightMax. Open Extended LengthApprox. Closed LengthApprox. Cu. Ft. Per UnitApprox. Product Weight (lb)

Different types of ladders are designed to keep you safe and productive when climbing or standing. Using the wrong style of ladder or simply ignoring the limitations of climbing equipment can result in a fall or serious injury.
Height reach Height is referring to the actual ladder height. Extension ladders should be 7 to 10 feet longer than the highest support or contact point, which may be the wall or roof line. The highest standing level is four rungs down from the top. The highest permitted standing level on a stepladder is two steps down from the top.

Reach height is the maximum reach assuming a 5’6” person with a vertical 12” reach.
Ladders are designed to safely hold up to a specific amount of weight. The Werner Performance System defines five different capacities using a color and star rating system. The Duty Rating is defined as the maximum safe load capacity of the ladder. A person’s fully clothed weight plus the weight of any tools and materials that are carried onto the ladder must be less than the load capacity.

Performance system
Werner offers ladder made from fiberglass and aluminum. Each material has characteristics which make it best for certain applications, or one material may simply fit the personal preferences of the user. For example, if working around electricity users should select fiberglass products due to their non-conductive side rails.